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Follow the usage standards below.
Item Description
Power Voltage fluctuation
Within ±10%
Phase balance
Within ±2% (maximum voltage - average voltage) / average voltage x 100
Frequency fluctuations
Within ±2%
Chilled
(warm)
water
Water
pressure
Model with integrated inverter pump 0.7 MPa or less
Pumpless model
0.98 MPa or less
Water quality
- Follow Japan Refrigeration and Air Conditioning Industry Association's "Water
Quality Guidelines for Cooling and Air Conditioning Devices"
(JRA-GL-02-1994).
- Must not include dissolved materials that harm copper, iron, or brazing material.
Water
spray
Water pressure
0.2 MPa or less
Water quality
- Follow Japan Refrigeration and Air Conditioning Industry Association's "Water
Quality Guidelines for Cooling and Air Conditioning Devices"
(JRA-GL-02-1994).
- Prepare a 50 mesh or more strainer in the supply water pipe.
- Carry out water quality treatment with water softeners as necessary.
Installation location
- USX EDGE modules must be installed outside.
- Ensure space is secured for servicing and the intake of fresh air (exhaust air
from the heat pump fans must not short circuit).
- Not a depression or a location with poor ventilation.
- The location must be able to properly support the operating weight of the heat
pump.
- Ensure drainage is installed to provide water removal from the water spray
system and condensation water from the each module.
(Dispose of drainage and waste water from the heat pump as necessary.)
- Prepare measures for accumulating snow and strong winds, as necessary.
- Prepare measures to prevent damage from salt (Specifications for salt
resistance and heavy salt resistance are available as options for USX EDGE).
- Location must not be over 1/2000 inclination.
Surrounding environment
- Do not install in locations where there is excessive machine oil in the air.
- Do not install in locations where sulphide gas is present in the air (such as hot
spring locations).
- Do not install in locations where there is a risk of the generation, inflow, or
accumulation of flammable gas.
- Do not install in locations where the atmosphere is acidic or alkaline.
- Do not install in locations where there are airborne carbon fibres or metal
particles.
- Do not install in other locations that are exposed to the smoke from
smokestacks.
- Not a location with high humidity
- Not a location with poor ventilation or where short circuits occur.
Operating Standard and Operating Range